I think you sound very well prepared! I certainly know the feeling of excitement and nervousness, I get it every time I get a new pup. The nervousness doesn't take long to subside when your pup comes home and its replaced with love and excitement.

I think you have to prepare yourself and your OH that you might have a few disturbed nights, and get plenty of sleep before she arrives. I've found that girls adapt at night quicker than boys. People who I've asked about it have found it to be the case too, but there are of course always exceptions! Personally I would say don't sleep in the kitchen with her. As some others have said you end up making a rod for your own back, which can continue for many years. You can also end up with a problem of seperation anxiety too if your pup doesn't get used to spending time on her own.
Firstly I know a friend who went to her Wiemaraner pup every time it cried and let it out of its crate. Now aged two the dog cries continually whenever it wants something or wants her attention until he gets what he wants.
I made the mistake with my first pup of only ever going off to do things like housework etc when she fell asleep. When she woke I would play and fuss her until she went to sleep again. I'd let her follow me around the house too. She ended up having seperation anxiety, cluminating in her wrecking my house on the odd occassions I went out. I managed to resolve it and she's fine now, but I learnt from that mistake and have done it very differently with my other two pups who haven't had issues with seperation anxiety.
Treats, personally I avoid anything with colourings. I found they made my lab hyper and was advised by a trainer to remove all colourings from her diet and it made a big difference. So I've tended to avoid them ever since. But at Christmas my dogs were given treats with colourings as presents so I relented and let them have some. Big mistake, Barney my cocker pup was the worst, and was so unbelievably hyper. If you are buying treats look on the back, the majority of treats like Pedigree, Winalot and the like have colourings in. The original Bonio doesn't. I started to make my own dog treats a few months ago, they don't take much doing and I like the fact I know exactly what they are eating. I've some recipes if you want them, just drop me a PM.
I bathed Barney early on, after a few days. He was always a smelly dog until I changed him onto BARF so he had a bath most weeks. Now its every couple of weeks. Make sure you use a good quality puppy shampoo. Gentle slicker and a comb is fine to begin with. Brush him every day to get him used to it. You may find a grooming table useful, I do, and particularly if you are going to show him. I've not used dry bags but I know alot of people on her do successfully. I use a special "towel" thats yellow that soaks up the water from Barney really quickly. I just wrap him in that and another towel on top and cuddle him for a while, which he loves. I've just tried to find you a link to one, but where I got mine from aren't selling them at the moment. This is a similar one
http://www.canineconcepts.co.uk/item--Super-Fast-Pet-Towel--dogtowelI would also say a detangling comb is a good idea, like this
http://www.canineconcepts.co.uk/item--The-Amazing-Untangler--untangler I have the Super Groom Comb, but you won't need one of those until her coat gets a bit longer.
If you've found a training class, ask if you can go along and watch the class in action before you book her in. Our trainer doesn't have any problems with people doing that. Puppy classes are essential in my mind, for socialisation more than anything but it points you in the right direction too. All three of mine started with puppy class and have continued going to training classes every week since then.
No matter how prepared you are, a puppy arriving will always be a shock to the system. It won't take long for you or her to settle down into a routine. Good luck and don't forget to post lots of pics.
